<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
		<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
		<title></title>
	</head>
	<body>
		<div class="container">
			<form action="">
				<div class="input-group">
					<div class="input-group-prepend">
						<span class="input-group-text">@</span>
					</div>
					<input type="text" class="form-control"/>
				</div>
				<div class="input-group mt-3">
					<input type="email" class="form-control"/>
					<div class="input-group-append">
						<span class="input-group-text">@qq.com</span>
					</div>
				</div>
				<div class="input-group mt-3">
					<input type="search" class="form-control" placeholder="请输入关键词"/>
					<div class="input-group-append">
						<button type="submit" class="btn btn-danger">Go</button>
					</div>
				</div>
			</form>
		</div>
	</body>
</html>
